Andoer Tremolo Harmonica Mouth Organ 24 Double Holes with 48 Reeds Wind Instrument with Case (C Key) Tremolo harmonica with 24 holes and 48 reeds. Exquisite and light-weight design allows you to enjoy joyful time of music at anytime and anywhere. Cover is made of stainless steel, good durability. Comes with a plastic case and a piece of cloth, to keep your harmonica safe and clean. Ideal for music lovers to enjoy joyful time of music at anytime and anywhere.